Water-cooled lintel and skewback channel cooler



H. F. NULPH Oct. 21, 1952 K WATER-COOLED LINTEL AND SKEW-BACK CHANNELCOOLER Filed Dec. 30, 1949 Fig Z.

mlmuwuunnm 8 INVENTOR.

Ann-II Harry 1-. Iva/ 00 H; F. NULPH Oct. 21, 1952 WATER-COOLED LINTELAND SKEW-BACK CHANNEL COOLER I 2 SHEETSSHEET 2 Filed Dec. 30, 1949Fig.5.

Harry. F. Nu/plz I 'INVENTOR.

-BY all Patented Oct. 21, 1952 UNITED mm, PATENT OFFICE WATER-COOLEDIIJINTELI ANDY SKEWBACK CHANNEL COOLER Han-yr. Nulplr, East Liverpool,01116 Application December 30, 1949,- Serial Not-136,086

1 This invention relates to new and useful improvements in water-cooleddoor frames of the type used inthe furnaces of the steel industry,

and more particularly pertainsto a water-cooled lintel having improvedcirculation means and meansfor attaching the same to a supportingstructure.

The primary olbject of this invention is to'pr'ovide support for themasonry-above furnace openings, which will permit efficaciousreplacement of bricks or the like adjacent the opening that have beendestroyed byexcessivelyhigh tempera any considerable heatexchangetherewith; while-- obtaining adequate support therefrom.

Still another important object of the invention is'to provide a deviceofthis character which is liquid cooled and in which the liquidcirculation is suchqasto insure adequatecooling to the sup port at thepoints where: the same is more sub- J'ect todeleterious effects of heat;

A-meritorious feature ofthe present invention resides in the sleeves;which receive the fastening bolts by which the lintel is supported uponthe buck stays, extending; through thez 'rear portionsof the hollowjacket, whereby thesleeves and the bolts-are Water-cooled and thearrangementof the portions being such with respect to thebuck stays thatheat insulatingjpads; such as asbestos-can beinserted therebetween.

Anotherimportant feature of the present inventionresides in the-contourof the-front wall of the lintel, whereby: access is permitted to thewater inlet pipes, adequat support given'thefurnace roof, radiant energyreflected from the same,

andv the combustion products slide'off the same.

'Another important feature of the present in-' vention resides in thelaterally extending portions being slightly higher than the bodysectionto'accommodate steam if such is formed; andto permit access'tobricks overlyin the body section.

A final important feature to be specifically enumerated.- herein-residesin thewater. icirculae claims; (01. D etion afi o-rded by the lintel,whereby cold water is directed to the danger points, and the flow of thewater being. forced to the rear of the laterally extending portions,whilesteam if such is formed is directed away from the. forward sloping,wall and immediately out of the outlet pipes,- thereby avoiding hightemperatures in the lintel by not permitting the formation ofsuperheated steam at any point in the lintel; V I

These, together with various ancillary features and objects of theinvention which will later become apparent as the following descriptionpro ceeds are attained by the presentinvention, a preferred embodimentof which has been illustrated by way of example only in the accompanyingdrawings, wherein:

Figure l is a front elevational vie'w'of the lintel, showing the same inposition on afurnace and secured to buck stays by bolts, indicated indotted li do .a a v c Figure 2 is a rear elevational view of the lintel,showingthesame in use on a furnace;

Figur 3 is a vertical transverse sectional view of :the presentinvention, being taken substantially upon theplane of the section line33 of Figure gl; 7

Figures s a, top plan-view of the lintel, than taching sleeves being"shown in dotted outlines;

l igure'5 is a' horizontal sectional view of the lintel, being takenupon theplane of the section line fi;5iofFigure 6';

Figure 6' isa vertical transverse sectional view .o f-thelintel, beingtaken upon the plane of the section line 6'6* of Figure 4;

Figure 7 a vertica1- longitudinal sectional viewofthe lintel, bein takensubstantially upon the plane of the broken'section line T--! ofFigurefi; and,

t Figure 3 is another vertical transverse sectional designate similarparts throughout the variousviews, and inwhich the lintelis indicatedgenerally byithe numeral I0.

The lintel I0 comprises a substantially U- shaped hollow jacket having abody section l2 and rear-wardly extending portions I4 at the oppositeextremities of the body section I 2. end walls It of thebodysection I2extend rearwardly to define'theouter side walls l8'of' the portions 1l4; while the'inner walls'zfl'of theportions l'4' terminate at theopposite 'extremities 'of the rear wall 22 of the body section I2"; sothat:

The

the interiors 24 of the portions l4 are in free communication with theinterior 26 of the body section 12, as will be readily understood uponreference to Figure 5.

As best shown in Figures 1 and 7, the upper wall 28 of the body sectionI2 is downwardly curved at 39 adjacent its opposite ends 34 to be lowerthan the upper walls 36 of the portions l4 substantially its entirelength for a purpose to become subsequently apparent.

The rear wall of the body section 12 includes an upper vertical portion38 and horizontal portion 40 extending rearwardly from the lower edge ofthe portion 38. A wall portion 42 extends rearwardly and downwardly fromthe Outer edge of the portion 46 and terminates at the bottom wall d4 ofthe lintel ill, the rear wall being so contoured for a purpose presentlyclear.

A plurality of longitudinally spaced water inlet pipes extend verticallythrough the portion 40, and have their lower ends terminating in spacedrelationship above the bottom wall 44 of the lintel l0, and the upperends of the water pipes 46 are threaded as at 48 for connection to asource of water, not shown, for forcing water into the body section l2immediately above the bottom wall 44 thereof. Pairs of spaced hot wateroutlet pipes 56 extend upwardly from each of the portions M, the lowerends of which communicate with the upper parts of the interiors 24, andthe upper ends of which are threaded as at 52 for connection to a watercooling system or the like, not shown, so that the water can berecirculated to the pipes :36 if desired. Outlet pipes 54 are connectedto the lower rear extremities of the portions l4, and each of the pipes54 is provided with valves 56 for controlling the discharge therefrom.The pipes 54 and valves 56 are for the purpose of permitting the lintelIE) to be drained or flushed free of sediment which may have beendeposited therein.

Vertically spaced sleeves 58 extend through each of the portions l4, andare in sealed engagement with the walls. I8 and 20, as by welding so,the arrangement being such that water circulating in the interiors 24circulates about the sleeves 58 so as to cool the exterior thereof.

As shown clearly in Figures 1, 2 and 3, the lintel I is disposed abovean Opening 62 in the side wall 64 of a furnace 66 that is constructed ofmasonry, such as fire brick, or other refractory material as desired,and which includes an arched roof construction 68 and upright buck staysdisposed on opposite sides of the opening 62. The lintel H] is supportedby the buck stay 10 by means of bolts 12 which extend through suitableapertures in the buck stays l0 and the sleeves 58, the arrangement beingsuch that asbestos pads or the like, not shown, may be disposed betweenthe portions l4 and the buck stays 10 if desired.

With particular reference to Figure 3, it will be seen that the rearwall of the lintel [0 provides adequate support for the roofconstruction 68, while the horizontal portion 40 and the upper wall 28being depressed permit access to the inlet pipes 46 and the bricksforming the roof structure 68 It will be readily appreciated that theportions l4 may, if desired, be formed to extend below the body section12 to define cooled side walls for the opening 62, and with the samebeing secured to the buck stays in a similar manner throughout theirvertical extent without departing from'the spirit of the instantinvention.

The circulation of water through the lintel ill will be readilyunderstood. Water admitted to the interior of the body section l2intermediate its ends proceeds from immediately above the bottom wall 44thereof, to the portions [4 to insure cooling of the body section 12throughout its entire length and upwardly to the outlet pipes 50 so asto cool the sleeves 58. It will be noted that any steam formed againstthe sloping wall 42 is directed upwardly and away from the wall 42 toprovide for good heat exchange between the liquid water in the bodysection l2 and the wall 42, while such steam thus formed proceedsimmediately to the upper portion of the interiors of the portions 14 soas to be immediately removed from the lintel lil through the pipes 59.It will also be noted that the sloping wall 42 does not permit theaccumulation of combustion products upon the lintel l0 and that thesloping of the same tends to reflect radiant, energy emanating from thecombustion chamber of the furnace away from the lintel ID.

The lintel I0 is preferably constructed of steel plate to insuresufficient strength in the same for supporting the roof structure, andit will be seen that the form of the same is such that the same may bereadily fabricated by suitable welding.

From the foregoing, the construction and operation of the device will bereadily understood and further explanation is believed to beunnecessary. However, since numerous modifications and changes willreadily occur to those skilled in the art after a consideration of theforegoing specification and accompanying drawings, it is not desired tolimit the invention to the exact construction shown and described, butall suitable modifications and equivalent may be resorted to, fallingwithin the scope of the appended claims.

I-Iaving described the invention, what is claimed as new is: f

1. A lintel for furnace structures, said lintel comprising a hollowsubstantially U-shaped member including a body section and a pair ofspaced parallel leg portions joined by said body section, said legportions each having flat upper and lower horizontal walls and inner andouter vertical side walls, said body section also including flat upperand lower walls, said lower wall of said body section being coplanarwith said lower walls ofsaid leg portions and said upper wall of saidbody section being in a horizontal plane below a horizontal plane of theupper walls of said leg portions, said body section including a steppedrear wall having a vertically; disposed upper portion, a verticallyinclined rearwardly and downwardly sloping lower portion and ahorizontal portion joining said upper and lower portions, inlet conduitsextending downwardly through said horizontal portion, outlet conduitsextending downwardly through the upper walls of said leg portions, saidside walls of each leg portion having registering apertures therein, andsleeves fixed in said registering apertures and adapted to receivefasteners, whereby the lintel may be secured between the buck stays of afurnace structure.

2. A lintel for furnace structures, said lintel comprising an elongatedhollow body member including forward and rear walls, a pair of hollowattaching flanges extending forwardly from said bodymember and havingcommunication with the interior of said body member, said hollowfiangeseach having inner and outer side walls with registering aperturestherein, sleeves fixed in said registering apertures and adapted toreceive fasteners, outlet means attached to each of said hollow flanges,inlet means attached to said body member, and drain conduits extendingfrom said hollow flanges and including valve 5 means, said rear wall ofsaid body member including a flat vertical upper portion, a verticallyin- ,clined downwardly and rearwardly sloping lower portion, and ahorizontal portion joining said upper and lower portions. 10

HARRY F. NULPH.

' REFERENCES CITED ,The following references are of record in the 15file of this patent:

UNITED STATES PATENTS Number Number Name Date Ross et a1 Mar. 9, 1897Knox June 26, 1906 Blair July 6, 1909 Knox Aug. 9, 1913 Naismith June 8,1915 Davison Dec. 21, 1926 Thornton Feb. '7, 1933 Thornton 1 Sept. 12,1939 'Pottmeyer Aug. 27, 1946 FOREIGN PATENTS Country Date Great BritainAug. 8, 1912 France Dec. 26, 1922

